Blue gold plating

Hi everyone!

I am new to this forum and think it is a great idea to be able to
exchange ideas with people with professional knowledge! My question
is I need to plate gold items with a blue rhodium or a plating that
will result in the color blue. I have heard that there is one place
world wide that does this, can anyone give me on this. I
am based in Israel, and there is no one here that does this.

Thanks
Pamela Harari